re PR bootstrap/85921 (/gcc/c-family/c-warn.c fails to build)

	PR bootstrap/85921
	* c-warn.c (diagnose_mismatched_attributes): Remove unnecessary
	noinline variable to workaround broken kernel headers.

From-SVN: r260790

gcc/c-family/ChangeLog

+2018-05-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/85921
+	* c-warn.c (diagnose_mismatched_attributes): Remove unnecessary
+	noinline variable to workaround broken kernel headers.
+
 2018-05-18  Jason Merrill  <jason@redhat.com>
 
 	* c.opt (Wdeprecated-copy): New flag.

gcc/c-family/c-warn.c

@@ -2246,18 +2246,16 @@ diagnose_mismatched_attributes (tree olddecl, tree newdecl)
 		       newdecl);
 
   /* Diagnose inline __attribute__ ((noinline)) which is silly.  */
-  const char *noinline = "noinline";
-
   if (DECL_DECLARED_INLINE_P (newdecl)
       && DECL_UNINLINABLE (olddecl)
-      && lookup_attribute (noinline, DECL_ATTRIBUTES (olddecl)))
+      && lookup_attribute ("noinline", DECL_ATTRIBUTES (olddecl)))
     warned |= warning (OPT_Wattributes, "inline declaration of %qD follows "
-		       "declaration with attribute %qs", newdecl, noinline);
+		       "declaration with attribute %<noinline%>", newdecl);
   else if (DECL_DECLARED_INLINE_P (olddecl)
 	   && DECL_UNINLINABLE (newdecl)
 	   && lookup_attribute ("noinline", DECL_ATTRIBUTES (newdecl)))
     warned |= warning (OPT_Wattributes, "declaration of %q+D with attribute "
-		       "%qs follows inline declaration", newdecl, noinline);
+		       "%<noinline%> follows inline declaration", newdecl);
 
   return warned;
 }